Traefik is an open source HTTP reverse proxy and load balancer. When Traefik is configured to use the `HTTPChallenge` to generate and renew the Let's Encrypt TLS certificates, the delay authorized to solve the challenge (50 seconds) can be exploited by attackers to achieve a `slowloris attack`. This vulnerability has been patch in version 2.10.6 and 3.0.0-beta5. Users are advised to upgrade. Users unable to upgrade should replace the `HTTPChallenge` with the `TLSChallenge` or the `DNSChallenge`.
References
Configurations
Configuration 1 (hide)
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History
07 Dec 2023, 21:01
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://doc.traefik.io/traefik/https/acme/#tlschallenge - Product | |
| References | () https://github.com/traefik/traefik/releases/tag/v3.0.0-beta5 - Release Notes | |
| References | () https://github.com/traefik/traefik/releases/tag/v2.10.6 - Release Notes | |
| References | () https://github.com/traefik/traefik/security/advisories/GHSA-8g85-whqh-cr2f - Third Party Advisory | |
| References | () ttps://www.cloudflare.com/learning/ddos/ddos-attack-tools/slowloris/ - Broken Link | |
| References | () https://doc.traefik.io/traefik/https/acme/#dnschallenge - Product | |
| References | () https://doc.traefik.io/traefik/https/acme/#httpchallenge - Product | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.9 |
| CPE | cpe:2.3:a:traefik:traefik:3.0.0:beta3:*:*:*:*:*:* cpe:2.3:a:traefik:traefik:3.0.0:beta1:*:*:*:*:*:* cpe:2.3:a:traefik:traefik:3.0.0:beta4:*:*:*:*:*:* cpe:2.3:a:traefik:traefik:3.0.0:beta2:*:*:*:*:*:* cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:* |
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| First Time |
Traefik traefik
Traefik |
04 Dec 2023, 21:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2023-12-04 21:15
Updated : 2023-12-10 15:26
NVD link : CVE-2023-47124
Mitre link : CVE-2023-47124
CVE.ORG link : CVE-2023-47124
JSON object : View
Products Affected
traefik
- traefik
CWE
CWE-772
Missing Release of Resource after Effective Lifetime